Traction, control, confidence, and fun—the Riprock 20 Coaster is the perfect bike for your kid to start hitting the trails with. And with the simple coaster brake design, safety and fun aren't mutually exclusive anymore.While there are many notable features that make the Riprock awesome, it's the 2.3-inch tires that provide a high degree of, well, shred-ability—delivering exceptional traction, control, and confidence for riding rough, off-road sections and city streets alike. And when you combine the big tires with sturdy 20-inch wheels, an easy-to-use coaster brake that all but eliminates the threat of the dreaded endo, and a single-speed setup, you have the perfect mountain bike to get your little Ripper out on the trail. The A1 premium aluminum frame is lightweight and built to withstand the tough use by kids, while the geometry features an ultra-low standover that makes it easy for your little ones to fit on and grow with the bike. Steel coaster brake is a reliable, easy to use brake perfect for safe stops and awesome skids. 20x2.3" Rhythm Lite tires deliver tons of traction, comfort, stability, and fun over all types of terrain. Frameset Frame Specialized A1 Premium Aluminum Seat Binder Bolt-type, 28.6mm Fork Hi-Ten steel Brakes Rear Brake V-brake w/ tool-less reach adjust brake lever Drivetrain Chain KMC Z510, single-speed, anti-drop, 1/2"x1/8" Crankset Hi-Ten steel, 114mm Chainrings Steel, 36T Bottom Bracket Feimin FP-B701, 68MM Wheels & Tires Rims 20" alloy, 16mm depth, 21mm internal width Front Hub Steel, bolt-on, 100mm spacing, loose ball bearings, 36h Rear Hub Coaster brake, bolt-on, loose ball bearings, 110mm spacing, 18T cog, 36h Spokes Stainless, 14g Front Tire Rhythm Lite, 30 TPI, wire bead, 20x2.3" Rear Tire Rhythm Lite, 30 TPI, wire bead, 20x2.3" Inner Tubes Schrader valve Cockpit Stem Die Cast Aluminum, 37mm length, 10 degree, 22.2 clamp diameter Handlebars BMX, steel, 10-degree backsweep, 4-degree upsweep, 130mm rise, 560mm width, 22.2mm Grips Specialized, slip-on Saddle Specialized Kids' Henge SeatPost Steel, 25.4mm Accessories Pedals Nylon platform w/ reflectors
